Analytical Design of Gigacycle Fatigue Specimens for Size Effect Evaluation

A. Tridello; D.S. Paolino; G. Chiandussi; Massimo Rossetto

doi:10.4028/www.scientific.net/KEM.577-578.369

Paper Titles

Experimental Investigation about Surface Damage in Straight and Crowned Misaligned Splined Couplings
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Simulation of Adhesion Performance of Mortar-Mortar Interface with Varied Fractographic Features
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Bi-Material Notches under Various Normal-Shear Loading Modes
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Microtensile Video Tester for Observation of Banana and Abaca Reinforced Composites Failure
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Analytical Design of Gigacycle Fatigue Specimens for Size Effect Evaluation
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Propagation Behavior of Naturally Initiated Small Crack in Austenitic Heat Resistant Steel under Thermo-Mechanical Fatigue Loading
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The Role of Methane Hydrates in the Failure of a Gas Pipeline
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Numerical Investigation on LEFM Limits under LSY Conditions
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Modeling Fatigue Damage of Concrete
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Analytical Design of Gigacycle Fatigue Specimens for Size Effect Evaluation

Abstract:

Research activities on gigacycle fatigue properties of materials have recently focused on the influence of specimen size used for ultrasonic fatigue tests. In order to increase the volume of material subjected to the maximum stress (risk volume) a new specimen shape with a Gaussian profile is proposed. An approximation of the Gaussian profile with an arc of circle is presented in the paper, in order to simplify the Gaussian specimen manufacturing process. The effect of the approximation is evaluated analytically and through a finite element analysis.